Air Conditioning (Rear)

System Outline

1. Manual Operation
When air volume is set by blower control SW within rear cooler SW, signal is transmitted from rear cooler SW to A/C control assembly (w/o LEXUS navigation system), A/C ECU (w/ LEXUS navigation system). A/C control assembly (w/o LEXUS navigation system), A/C ECU (w/ LEXUS navigation system) controls power transistor, and controls the blower motor at preset air volume.

2. Auto Operation
When blower control SW within rear cooler SW is set to AUTO position, signal is transmitted from rear cooler SW to A/C control assembly (w/o LEXUS navigation system), A/C ECU (w/ LEXUS navigation system). A/C control assembly (w/o LEXUS navigation system), A/C ECU (w/ LEXUS navigation system) controls the power transistor based on signal from various sensors, operates the blower motor, and adjusts air volume. It should be noted that auto control applies only when blowout port of front air conditioning is positioned at FACE, and blower is turned off otherwise.

3. Temperature Control
Temperature control of rear air conditioning can be set up to ±5°C of front air conditioning temperature setting.
- Rear air conditioning works only when front air conditioning is operating, and only blows air when front air conditioning is off.